The weather isn’t cooperating at the moment, but NASA is poised to launch its highly-anticipated Ares I-X rocket this morning. As Space.com reports, the rocket is designed both to replace the aging space shuttle and–perhaps one day–transport humans to Mars.

To commemorate the event, NASA built the booster stage from parts previously flown on 30 shuttle missions, including the one that launched the Hubble Space Telescope, according to the report.

Currently, winds are a little heavy at the Kennedy Space Center in Florida. But NASA has until noon today to launch the rocket before rescheduling. The rocket won’t actually enter space; instead, it will follow a 28-mile-high, five minute flight profile while over 700 sensors record its performance, according to the report. (Image credit: NASA)